By adding
Code: Select all
&& pos.non_pawn_material(pos.side_to_move()) > RookValueEg
to step 7 and step 8 in search.cpp
I got
Code: Select all
20/26 00:01 2.172k 2.115k +1,07 a2-a4 Bg5-d2 f3-f4 Bd2xf4 a4-a5 b6xa5 Ke8-e7 h6-h5 b5-b6 h5-h4 Bc2-f5 Kg8-g7 b6-b7 Bf4-h2 Ke7-e6 Bh2-b8 Bf5-h3 Kg7-g6 Bh3-f1 Kg6-g5 Ke6-d5 Kg5-f4 Bf1-h3 Kf4-f3
21/26 00:01 2.298k 2.097k +1,08 a2-a4 Bg5-d2 f3-f4 Bd2xf4 a4-a5 b6xa5 Ke8-e7 h6-h5 b5-b6 h5-h4 Bc2-f5 Kg8-g7 b6-b7 Bf4-h2 Ke7-e6 Bh2-b8 Bf5-h3 Kg7-g6 Ke6-d5 Kg6-g5 Kd5xc5 Kg5-f4 Kc5-d5
22/27 00:01 2.701k 2.079k +1,08 a2-a4 Bg5-d2 f3-f4 Bd2xf4 a4-a5 b6xa5 b5-b6 h6-h5 Ke8-e7 Kg8-g7 Bc2-f5 h5-h4 Ke7-e6 Bf4-h2 Ke6-d5 Kg7-f6 Bf5-h3 Kf6-e7 Kd5xc5 Bh2-f4 Bh3-g4 Ke7-d8 Bg4-f5
23/27 00:01 3.909k 2.036k +1,04 Ke8-d7 Bg5-d2 Kd7-c6 Bd2-a5 f3-f4 h6-h5 Bc2-e4 Kg8-g7 a2-a3 Kg7-f6 Be4-f3 Kf6-g6 Bf3-e2 Kg6-f6 Be2-d1 Kf6-g6 Bd1-f3 Kg6-f6 b3-b4 c5xb4 a3xb4 Ba5xb4 Kc6xb6
24/28 00:03 7.159k 2.114k +1,00 Ke8-d7 Bg5-d2 Bc2-f5 h6-h5 Kd7-c6 Bd2-a5 Bf5-g6 h5-h4 Bg6-f5 Kg8-f7 Bf5-c8 Kf7-e7 f3-f4 Ke7-f6 Bc8-h3 Kf6-e7 Bh3-f5 Ke7-f6 Bf5-c8 Kf6-f7 Bc8-d7 Kf7-f6 a2-a3 Kf6-f7 Bd7-h3 Kf7-f6
25/28 00:03 8.278k 2.135k +1,00 Ke8-d7 Bg5-d2 Bc2-f5 h6-h5 Kd7-c6 Bd2-a5 Bf5-g6 h5-h4 Bg6-f5 Kg8-f7 Bf5-c8 Kf7-e7 f3-f4 Ke7-f6 Bc8-d7 Kf6-e7 Bd7-f5 Ke7-f7 Bf5-h3 Kf7-f6 Bh3-c8 Kf6-f7 Bc8-g4 Kf7-f6 Bg4-h3 Kf6-f7
26/29 00:04 9.435k 2.162k +1,00 Ke8-d7 Bg5-d2 Bc2-f5 h6-h5 Kd7-c6 Bd2-a5 Bf5-g6 h5-h4 Bg6-f5 Kg8-f7 Bf5-c8 Kf7-f6 f3-f4 Kf6-e7 Bc8-f5 Ke7-f6 Bf5-h3 Kf6-e7 Bh3-c8 Ke7-f6 Bc8-d7 Kf6-f7 Kc6-c7 Kf7-e7 Bd7-c8 Ke7-f6 Bc8-g4 Kf6-e7 Kc7-c6
27/29 00:05 11.071k 2.166k +1,00 Ke8-d7 Bg5-d2 Bc2-f5 h6-h5 Kd7-c6 Bd2-a5 Bf5-g6 h5-h4 Bg6-f5 Kg8-f7 Bf5-c8 Kf7-f6 f3-f4 Kf6-e7 Bc8-f5 Ke7-f6 Bf5-g4 Kf6-e7 Kc6-c7 Ke7-f6 Bg4-c8 Kf6-e7 Kc7-c6 Ke7-f6 Bc8-d7 Kf6-e7 Bd7-g4 Ke7-f6 Kc6-c7
28/32 00:12 28.091k 2.267k +1,07 Ke8-d7 Bg5-d2 a2-a3 Kg8-f7 Kd7-c7 Bd2-a5 Kc7-c6 h6-h5 f3-f4 Kf7-f6 Bc2-d1 h5-h4 Bd1-g4 Kf6-e7 Bg4-c8 Ke7-f6 Bc8-h3 Kf6-e7 Bh3-g4 Ke7-f6 Kc6-c7 Kf6-e7 b3-b4 c5xb4 a3xb4 Ba5xb4 Kc7xb6 Ke7-f6 Kb6-c6
29/37+ 00:16 39.780k 2.346k +1,18 Ke8-d7
29/37+ 00:17 40.068k 2.348k +1,25 Ke8-d7
29/37 00:17 40.709k 2.356k +1,18 Ke8-d7 Bg5-d2 Bc2-f5 h6-h5 Kd7-c6 Bd2-a5 a2-a3 Kg8-f7 f3-f4 Kf7-e7 Bf5-h3 h5-h4 Bh3-f5 Ke7-f7 Bf5-c8 Kf7-e7 Bc8-h3 Ke7-d8 f2-f3 Kd8-e7 b3-b4 c5xb4 a3xb4 Ba5xb4 Kc6xb6 Ke7-d6 Kb6-a6 Kd6-d5 b5-b6
30/37+ 00:17 40.824k 2.356k +1,26 Ke8-d7
30/37 00:17 41.541k 2.362k +1,27 Ke8-d7 Bg5-d2 Bc2-f5 h6-h5 Kd7-c6 Bd2-a5 a2-a3 Kg8-f7 f3-f4 Kf7-e7 Bf5-h3 h5-h4 Bh3-f5 Ke7-f7 Bf5-c8 Kf7-e7 Bc8-h3 Ke7-f6 Bh3-g4 Kf6-g7 Kc6-b7 Kg7-f6 Kb7-a7 Kf6-f7 b3-b4 c5xb4 a3xb4 Ba5xb4 Ka7xb6 Kf7-f6
31/37+ 00:19 45.566k 2.394k +1,35 Ke8-d7
31/37+ 00:19 47.071k 2.399k +1,42 Ke8-d7
31/37- 00:20 49.617k 2.390k +1,35 Ke8-d7 Bg5-d2
31/39+ 00:21 51.261k 2.393k +1,43 Ke8-d7
31/39 00:26 62.277k 2.377k +1,48 Ke8-d7 Bg5-d2 Bc2-f5 h6-h5 Kd7-c6 Bd2-a5 f3-f4 Kg8-f7 a2-a3 h5-h4 Bf5-h3 Kf7-f6 Bh3-g4 Kf6-f7 Kc6-c7 Kf7-f6 Kc7-b7 Kf6-f7 Kb7-c6 Kf7-f6 Kc6-c7 Kf6-f7 b3-b4 Ba5xb4 a3xb4 c5-c4 Bg4-f3 c4-c3 Bf3-e4 h4-h3 f4-f5
32/39+ 00:32 75.162k 2.346k +1,55 Ke8-d7
32/39- 00:38 90.854k 2.342k +1,48 Ke8-d7 Bg5-d2
32/39 00:41 97.194k 2.346k +1,45 Ke8-d7 Bg5-d2 Bc2-f5 h6-h5 Kd7-c6 Bd2-a5 f3-f4 Kg8-f8 a2-a3 Kf8-e7 Kc6-c7 h5-h4 Bf5-h3 Ke7-f6 Kc7-b7 Kf6-e7 Kb7-c6 Ke7-f7 Bh3-g4 Kf7-f6 Kc6-c7 Kf6-f7 Kc7-b7 Kf7-f6 Kb7-c6 Kf6-f7 Bg4-h3 Kf7-e7 Bh3-c8 Ke7-f6 Kc6-c7 Kf6-e7 Bc8-f5 Ke7-f6
33/39 00:45 108.145k 2.353k +1,41 Ke8-d7 Bg5-d2 Bc2-f5 h6-h5 Kd7-c6 Bd2-a5 f3-f4 Kg8-f8 a2-a3 Kf8-e7 Kc6-c7 h5-h4 Bf5-h3 Ke7-f6 Kc7-b7 Kf6-e7 Kb7-c6 Ke7-f7 Bh3-f5 Kf7-f6 Bf5-g4 Kf6-f7 Bg4-h3 Kf7-e7 Bh3-c8 Ke7-f6 Kc6-c7 Kf6-e7 Bc8-g4 Ke7-f6 Bg4-h3 Kf6-e7 b3-b4 Ba5xb4 a3xb4 c5xb4
34/39 00:50 119.444k 2.368k +1,35 Ke8-d7 Bg5-d2 Bc2-f5 h6-h5 Kd7-c6 Bd2-a5 f3-f4 Kg8-f8 Kc6-b7 Kf8-f7 a2-a3 Kf7-f6 Bf5-h3 Kf6-e7 Kb7-c7 h5-h4 Bh3-f5 Ke7-f6 Bf5-c8 Kf6-e7 Bc8-g4 Ke7-f6 Bg4-d7 Kf6-e7 Bd7-h3 Ke7-f6 Bh3-g4 Kf6-f7 b3-b4 Ba5xb4 a3xb4 c5-c4 Bg4-f5 c4-c3 Bf5-e4 h4-h3
35/39 01:06 160.503k 2.418k +1,31 Ke8-d7 Bg5-d2 Bc2-f5 h6-h5 Kd7-c6 Bd2-a5 f3-f4 Kg8-f8 a2-a3 Kf8-e7 Bf5-h3 h5-h4 Kc6-c7 Ke7-f6 Bh3-g4 Kf6-f7 Bg4-f5 Kf7-f6 Bf5-h3 Kf6-e7 Kc7-c6 Ke7-f7 Bh3-g4 Kf7-f6 Kc6-b7 Kf6-f7 Kb7-c7 Kf7-f6 Kc7-c6 Kf6-f7 Kc6-b7 Kf7-f6 Kb7-a6 Kf6-f7 b3-b4 Ba5xb4 a3xb4 c5-c4
36/40+ 01:07 162.652k 2.423k +1,39 Ke8-d7
36/40- 01:12 175.431k 2.435k +1,31 Ke8-d7 Bg5-d2
36/40 01:15 185.403k 2.441k +1,31 Ke8-d7 Bg5-d2 Bc2-f5 h6-h5 Kd7-c6 Bd2-a5 f3-f4 Kg8-f8 a2-a3 Kf8-e7 Kc6-c7 h5-h4 Bf5-h3 Ke7-f7 Bh3-c8 Kf7-f6 Bc8-g4 Kf6-f7 Kc7-c6 Kf7-g6 Bg4-d7 Kg6-f6 Bd7-c8 Kf6-e7 Bc8-f5 Ke7-f6 Bf5-d7 Kf6-g6 Kc6-b7 Kg6-g7 Bd7-h3 Kg7-f7 Kb7-c7 Kf7-e7 b3-b4 Ba5xb4 a3xb4
37/40 01:42 256.685k 2.495k +1,30 Ke8-d7 Bg5-d2 Bc2-f5 h6-h5 Kd7-c6 Bd2-a5 f3-f4 Kg8-f7 a2-a3 Kf7-f6 Bf5-h3 h5-h4 Bh3-d7 Kf6-f7 Kc6-c7 Kf7-e7 Bd7-c8 Ke7-f6 Bc8-g4 Kf6-f7 Bg4-f5 Kf7-e7 Bf5-h3 Ke7-f7 Bh3-g4 Kf7-f6 Bg4-c8 Kf6-e7 Kc7-c6 Ke7-f6 Bc8-h3 Kf6-e7 b3-b4 c5xb4 a3xb4 Ba5xb4 Kc6xb6 Ke7-d6
38/40 01:53 285.108k 2.506k +1,27 Ke8-d7 Bg5-d2 Bc2-f5 h6-h5 Kd7-c7 Bd2-a5 f3-f4 Kg8-f7 Bf5-d7 Kf7-e7 Bd7-h3 h5-h4 a2-a3 Ke7-f6 Bh3-c8 Kf6-e7 Kc7-c6 Ke7-f6 Bc8-h3 Kf6-e7 Bh3-g4 Ke7-f6 Bg4-c8 Kf6-e7 Kc6-c7 Ke7-f6 Kc7-b7 Kf6-e7 Bc8-g4 Ke7-f6 Kb7-c6 Kf6-e7 Bg4-f5 Ke7-f7 b3-b4 c5xb4 a3xb4 Ba5xb4 Kc6xb6
39/40 02:15 340.814k 2.522k +1,25 Ke8-d7 Bg5-d2 Bc2-f5 h6-h5 Kd7-c6 Bd2-a5 f3-f4 Kg8-f7 Bf5-h3 Kf7-e7 Bh3-g2 Ke7-f6 Bg2-f3 h5-h4 Bf3-g4 Kf6-e7 Kc6-c7 Ke7-f7 Bg4-c8 Kf7-f6 Bc8-h3 Kf6-f7 Bh3-g4 Kf7-f6 Bg4-d7 Kf6-g7 Kc7-c6 Kg7-f6 Bd7-c8 Kf6-g6 Bc8-g4 Kg6-f6 Kc6-b7 Kf6-f7 Bg4-h3 Kf7-f6 Bh3-c8 Kf6-g6 Kb7-c6
40/40 02:26 370.469k 2.524k +1,25 Ke8-d7 Bg5-d2 Bc2-f5 h6-h5 Kd7-c6 Bd2-a5 f3-f4 Kg8-f7 Bf5-h3 Kf7-e7 Bh3-g2 Ke7-f6 Bg2-f3 h5-h4 Bf3-g4 Kf6-e7 Kc6-c7 Ke7-f7 a2-a3 Kf7-e7 Kc7-c6 Ke7-f6 Bg4-h3 Kf6-e7 Kc6-c7 Ke7-f6 Bh3-c8 Kf6-e7 Bc8-g4 Ke7-f7 Kc7-b7 Kf7-f6 Bg4-h3 Kf6-f7 Bh3-c8 Kf7-e7 Kb7-c6 Ke7-f6 Bc8-g4 Kf6-e7
41/45 03:04 466.712k 2.526k +1,24 Ke8-d7 Bg5-d2 Bc2-f5 h6-h5 Kd7-c6 Bd2-a5 f3-f4 Kg8-f7 Bf5-h3 Kf7-e7 Bh3-g2 Ke7-f6 Bg2-f3 h5-h4 Bf3-g4 Kf6-f7 Bg4-c8 Kf7-g6 a2-a3 Kg6-f6 Bc8-g4 Kf6-e7 Bg4-h3 Ke7-f6 Bh3-d7 Kf6-f7 Kc6-c7 Kf7-e7 Bd7-g4 Ke7-f7 Bg4-c8 Kf7-f6 Bc8-h3 Kf6-e7 Kc7-b7 Ke7-d6 Bh3-g4 Kd6-e7 Kb7-a7 Ke7-d6 Ka7-a6 Kd6-d5 f4-f5
42/45 03:29 528.614k 2.521k +1,24 Ke8-d7 Bg5-d2 Bc2-f5 h6-h5 Kd7-c6 Bd2-a5 f3-f4 Kg8-f7 Bf5-h3 Kf7-e7 Bh3-g2 Ke7-f6 Bg2-f3 h5-h4 Bf3-g4 Kf6-f7 a2-a3 Kf7-f6 Bg4-d7 Kf6-f7 Kc6-c7 Kf7-e7 Bd7-h3 Ke7-f6 Bh3-c8 Kf6-e7 Kc7-c6 Ke7-f6 Bc8-g4 Kf6-e7 Kc6-c7 Ke7-f7 Kc7-b7 Kf7-e7 Bg4-c8 Ke7-d6 Bc8-h3 c5-c4 b3-b4 Ba5xb4 a3xb4 Kd6-e7 Kb7xb6
43/45 04:24 665.817k 2.513k +1,24 Ke8-d7 Bg5-d2 Bc2-f5 h6-h5 Kd7-c6 Bd2-a5 f3-f4 Kg8-f7 Bf5-h3 Kf7-e7 Bh3-g2 Ke7-f6 Bg2-f3 h5-h4 Bf3-g4 Kf6-f7 a2-a3 Kf7-f6 Kc6-c7 Kf6-f7 Bg4-d7 Kf7-e7 Bd7-f5 Ke7-f6 Bf5-c8 Kf6-e7 Bc8-h3 Ke7-f6 Kc7-b7 Kf6-f7 Kb7-c6 Kf7-f6 Bh3-c8 Kf6-f7 Bc8-d7 Kf7-e7 Bd7-f5 Ke7-f6 Bf5-g4 Kf6-e7 b3-b4 Ba5xb4 a3xb4 c5-c4 Kc6xb6
44/46 06:17 942.943k 2.499k +1,24 Ke8-d7 Bg5-d2 Bc2-f5 h6-h5 Kd7-c6 Bd2-a5 f3-f4 Kg8-f7 Bf5-h3 Kf7-e7 Kc6-c7 h5-h4 Bh3-c8 Ke7-f6 Kc7-c6 Kf6-g6 Bc8-h3 Kg6-f7 Bh3-g4 Kf7-f6 a2-a3 Kf6-e7 Bg4-h3 Ke7-f7 Bh3-d7 Kf7-e7 Bd7-g4 Ke7-f6 Kc6-c7 Kf6-f7 Bg4-d7 Kf7-e7 Bd7-h3 Ke7-f6 Bh3-c8 Kf6-e7 Kc7-c6 Ke7-f7 b3-b4 Ba5xb4 a3xb4 c5-c4 Kc6xb6 c4-c3 Bc8-f5
45/52 34:05 5.366.587k 2.624k +1,25 Ke8-d7 Bg5-d2 Kd7-e6 h6-h5 Ke6-f5 Bd2-e1 Kf5-g5 Be1xf2 Kg5xh5 Kg8-f7 Kh5-g5 Kf7-e6 f3-f4 Bf2-e3 Bc2-e4 Be3-d2 Be4-g2 Bd2-e3 Bg2-c6 Ke6-d6 Bc6-e4 Kd6-d7 Kg5-f5 Kd7-d6 a2-a4 Be3-d2 Be4-d3 Kd6-e7 Kf5-g5 Ke7-e6 Bd3-e4 Ke6-e7 Be4-f3 Ke7-e6 Bf3-g2 Ke6-d7 Kg5-f5 Kd7-e7 Bg2-f3 Ke7-d6 Bf3-e2 Kd6-d7 Be2-f1 Kd7-e7 Bf1-g2 Ke7-f7
46/52 36:54 5.800.321k 2.620k +1,25 Ke8-d7 Bg5-d2 Kd7-e6 h6-h5 Ke6-f5 Bd2-e1 Kf5-g5 Be1xf2 Kg5xh5 Kg8-f7 Kh5-g5 Kf7-e6 f3-f4 Bf2-e3 Bc2-e4 Be3-d2 Be4-g2 Bd2-e3 Bg2-f3 Be3-c1 a2-a4 Bc1-d2 Bf3-g2 Ke6-f7 Kg5-g4 Kf7-g6 Bg2-e4+ Kg6-f6 Be4-d5 Bd2-c3 Bd5-b7 Kf6-e6 Kg4-g5 Bc3-d2 Bb7-f3 Ke6-d6 Kg5-f5 Kd6-e7 Bf3-e4 Ke7-d6 Be4-d3 Kd6-e7 Kf5-e5 Ke7-f7 Ke5-d5 Kf7-f6 Kd5-c6 Bd2-a5
47/52 39:30 6.211.921k 2.621k +1,25 Ke8-d7 Bg5-d2 Kd7-e6 h6-h5 Ke6-f5 Bd2-e1 Kf5-g5 Be1xf2 Kg5xh5 Kg8-f7 Kh5-g5 Kf7-e6 f3-f4 Bf2-e3 Bc2-e4 Be3-d2 Be4-g2 Bd2-e3 a2-a4 Be3-d2 Kg5-g4 Ke6-d6 Bg2-e4 Kd6-e7 Kg4-f5 Ke7-f7 Be4-d5+ Kf7-e7 Bd5-f3 Ke7-d7 Kf5-e5 Kd7-e7 Bf3-h5 Bd2-c3+ Ke5-d5 Ke7-f6 Kd5-c6 Bc3-a5 Bh5-g4 Kf6-f7 Bg4-f5 Kf7-f6 Bf5-d3 Kf6-e6 Bd3-h7 Ke6-f6 Bh7-b1 Kf6-e6 Bb1-e4 Ke6-f6
48/59+ 46:04 7.239.959k 2.618k +1,32 f3-f4
48/59+ 46:26 7.295.348k 2.618k +1,39 f3-f4
48/59+ 58:04 9.013.761k 2.587k +5,44 f3-f4
48/59- 1:03:17 9.774.235k 2.574k +4,60 f3-f4 Bg5-f6
48/59+ 1:04:23 9.930.272k 2.570k +5,66 f3-f4
48/66 2:08:11 20.370.680k 2.648k +10,39 f3-f4
So it took 46:30 min to find f4 on a small labtop running on 4 threads with 2 GB hash.
Kind regards
Bernhard